ludic/changes/outline-queue-lifetime.md
Orkuncakilkaya 3137df4fe6 fix(render3d): outline_model's batch survives the whole frame
A frame is drawn by more than one pass - a shadow map, a water reflection, the
scene - and actor_draw runs in each. An Actor's rim survives that because it is
a field on the actor; the queue did not, because the first pass to run emptied
it. A queued outline was drawn into whichever target came first and was gone by
the time the scene was drawn, so nothing appeared with every uniform, matrix
and mesh correct - which took a while to find.

A flush now closes the batch rather than clearing it, and the next
outline_model opens a new one.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-11 15:43:16 +03:00

12 lines
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Markdown

bump: patch
type: fix
**`outline_model`'s batch survives the whole frame.** A frame is drawn by more than one
pass — a shadow map, a water reflection, the scene — and `actor_draw` runs in each of
them. An Actor's rim survives that because it is a field on the actor; the queue did not,
because the first pass to run emptied it, so a queued outline was drawn into whichever
target happened to come first and was gone by the time the scene was drawn. Nothing
appeared, with every uniform, matrix and mesh correct.
A flush now *closes* the batch rather than clearing it, and the next `outline_model`
opens a new one: every pass in a frame sees the same requests, and a caller still needs
no frame hook.